Community Health School, Faculty of Medicine, Assiut University, Assiut, Egypt.
BMC Psychiatry. 2010 Dec 10;10:107. doi: 10.1186/1471-244X-10-107.
It is thought that depressive disorders will be the second leading cause of disability worldwide by 2020. Recently, there is a steady increase in the number of university students diagnosed and treated as depression patients. It can be assumed that depression is a serious mental health problem for university students because it affects all age groups of the students either younger or older equally. The current study aims to establish the reliability and validity of the Zagazig Depression scale in a UK sample.
The study was a cross-sectional online survey. A sample of 133 out of 275 undergraduate students from a range of UK Universities in the academic year 2008-2009, aged 20.3 ± 6.3 years old were recruited. A modified back translated version of Zagazig Depression scale was used. In order to validate the Zagazig Depression scale, participants were asked to complete the Patient Health Questionnaire. Statistical analysis includes Kappa analysis, Cronbach's alpha, Spearman's correlation analysis, and Confirmatory Factor analysis.
Using the recommended cut-off of Zagazig Depression scale for possible minor depression it was found that 30.3% of the students have depression and higher percentage was identified according to the Patient Health Questionnaire (37.4%). Females were more depressed. The mean ZDS score was 8.3 ± 4.2. Rates of depression increase as students get older. The reliability of The ZDS was satisfactory (Cronbach's alpha was .894). For validity, ZDS score was strongly associated with PHQ, with no significant difference (p-value > 0.05), with strong positive correlation (r = +.8, p-value < 0.01).
The strong, significant correlation between the PHQ and ZDS, along with high internal consistency of the ZDS as a whole provides evidence that ZDS is a reliable measure of depressive symptoms and is promising for the use of the translated ZDS in a large-scale cross-culture study.
据预测，到 2020 年，抑郁症将成为全球第二大致残病因。最近，被诊断和治疗为抑郁症患者的大学生人数不断增加。可以假设，抑郁症是大学生的一个严重的心理健康问题，因为它影响到学生群体中所有年龄段的人，无论年龄大小。本研究旨在建立 Zagazig 抑郁量表在英国样本中的信度和效度。
本研究是一项横断面在线调查。2008-2009 学年，从英国多所大学招募了 275 名本科生中的 133 名，年龄 20.3±6.3 岁。使用 Zagazig 抑郁量表的修改后回译版本。为了验证 Zagazig 抑郁量表，要求参与者完成患者健康问卷。统计分析包括 Kappa 分析、Cronbach's alpha 分析、Spearman 相关分析和验证性因素分析。
使用 Zagazig 抑郁量表的建议临界值来确定可能的轻度抑郁，发现 30.3%的学生患有抑郁症，根据患者健康问卷（PHQ）的识别率更高（37.4%）。女性更抑郁。平均 ZDS 得分为 8.3±4.2。随着学生年龄的增长，抑郁率上升。ZDS 的可靠性令人满意（Cronbach's alpha 为.894）。在有效性方面，ZDS 得分与 PHQ 呈强相关，无显著差异（p 值>0.05），呈强正相关（r=+0.8，p 值<0.01）。
PHQ 与 ZDS 之间的强显著相关性，以及 ZDS 的整体高内部一致性，为 ZDS 是一种可靠的抑郁症状衡量工具提供了证据，并为在大规模跨文化研究中使用翻译后的 ZDS 提供了前景。
